Elem container for endless films



July 27, 1943. H, WESTERKAMP FILM CONTAINER FOR ENDLESS FILMS Filed Aug. 6, 1940 container.

removed upper wall of the space for the filmcoil. Fig.2 is a sectional viewof the film container on the line II-II of Fig. 1.

' and lower end walls and peripheral walls, said walls being fixedly connected to provide a closed container for the coil of film, the upper end wall Fig. 3 is a plan view. of the lower side of the upper wall of the space for the film coil in the.

film container. V V

The film container consists of a chamber closed on all sides by the lower wall-l the upper wall 2,

V and the side walls 3, 4, and. 6. The walls of this chamber are'made of a cheap moulding mamaterial on a cellulose basis.

2,325,563 .1 I 'l.." ;;ii;,a

being apertured for exposing a portion of the inner and outer turns of the coil and for permitting 1 access tothe film loop] connecting said turns, the

terialof lightweight, for example of moulding The chamber en'- closed by the walls I to 6 serves to jreceivethe film coil'l. A The upper wall2 of the 'filmcontainer is pro-f vided with a central guided for the film coill. In the constructional exampleillustrated, thiscentral guide consists of a ring formed in cast- 2 ing the wall 2 and extending from above into the v film coil. Furthermore, the upper wall 2 has ra .dially outside .or, beyond the central guide an opening '9 to provide accessto; and forleading the loop of the film coil out ofthe film container.

Thejlower wall, I of the film container is Dl'ovvidedwithslots I 0 in radial direction to the film coil, which slots extend towards the centre of-the vfilm container unto belo'w'the' central; guide 8 and-towards the outside'of the film" container I up tolits side wall and through the latter. The

slots l9 are so dimensioned. that, when the film container is-inserted in the recording or reproducing apparatus, the rollers I I; provided in this apparatus canpa ss through the slots and can entirely or partly enter the film chamber of the.

In doingsdthe rollers lift the film ;coil,.which before was resting on thelower wall I of the film;container,"off this wall so that the 7 film coil is now supported by the rollers IL- A V common drive is suitably providedfor the'rollers, illustrated as comprising bevel gears Ha on the rollers and a driving bevel gear I lb which meshes therewithand by the, rotation of the rollers the film coil is turned. 1 a r I At. the lower side of the upper wall 2 of the film container, between. the central guide 8 and J the side walls of the film chamber, there are embedded metal wiresv l2 projecting a little beyond the surface of the wall. The guide ring8 is pro- :vided with a thin metal covering I 3 consisting, [for example, of a pasted-on metal foil. I The upper wall 2 of the film container is connected,

preferabl by seals I 6 passing through hole /ll so that itcanno-t be-taken off, totheportion l, 3,

4, 5; 6 ofthe film container, suitably consisting of enegpiece so-that a film .coil onceiplaced in the film chamber cannot be taken out or exchanged by 'another film coil. 'A cover l4 closesthe film container and protects the film loop against being dama ed. I In the opera-ti g position of the film container, the film coil *5 rests on the rollers Hand i turned by the latter. The lengthpf :Ithe rollers in'con-' junctionwith'the central'guide 8 and the side jv walls of the film container prevent the inner or 3 outer layers of the film coil from; slipping off the ,rollers. If,.in .operatiomindividual film layers should happen :to movein-upward or downward.

direction, theywill come. into contact with the {metalwire insertions- [Z or with the metal cover.-

Thus, an undeing.l 3 of the central guide 8.

All

lower end wall having openings for the passage of elements for supporting and driving the' film .QOilWhGll in operating position, the space between said end wallsbeing greater than the width of the film by at least the amount to which the said elementsextend into the film container whereby the; said elements support the coil above said lower wall when the parts are in operating posi tion."'-"' 2. A removable 'film container as in claim 1, in ,-which the openings are slots extending radially V with respect to the axisof the film coil for receiving said elements in the form of rollers. T

3. Aremovable film container as in claim -1, inwhich the upper endwall has a centralguide :extending downwardly into-thecoil film for limiting the inward movement of the film coil.

' 4. A removablefilm container forpermanently' holding a coil of ,endless film havingits inner and outer turns connectedb afilm loop, comprising upper and lower endwalls and: peripheral walls, said wall beingfixedlyconnected topro vide a closed container for the-coil of film,rth'e up per wall having apoentral circular guide extending downwardlyinto the coil of film for limitingthe radial movement thereof, said upperxwall having, an: aperture between the guide. and the peripheral wall structure for affording access to the film' loop, the lower end wall having slots extending radially with respect to. the axis of the film coil from the said peripheral walls to points belowthe central guide. 1 r

5.. A film container for permanently holding a coil of endless film comprising upper and lower endwallsan'd peripheral walls, said walls being fixedly connected toprovide, aaclosed containerfor the coil of film, the-upper end wall being formed of plastiomaterial and having wire like metallic guides embeddedgirr its upper 'surfacefcr contacting the upper, edges of the film coil, said. upper end :wall havingacentral uide of essen{ tially circular form extending downwardly into forthecoil of film, the uppern'end wall having a central guide extending downwardly into the coil of film-:and' also-having an opening radially outside of said,,central-guide for providing access-to sired high friction of the film coil and'damaging j of the film container are prevented.

Iclaim-z I 1. 'A removable film container for permanently holdinga coil ofendlessfilm, comprising upper the film lo0p;-,the lower :end wallhaving openings forthe passage (if-elements for'suppo'rting and driving the film coil when in operating position, the space "between said end ..walls being greaterthan the width of th'e filmby at'least' the amount to whichthe said elements extend 'int'othe film container. whereby the said elements support the coil above said.loweri walljwhen the parts are in operating-position. 1

7; In a removablefilm container for 'perma nently receivinga coil. of endless film in combinationwith-a drive therefor, the film container comprising upper and lower end walls and peripheral walls said walls ibeingfixedly connected togethenthe lowerend wall having; radial slots, the upper endwall; havingafixed central guide,

ers to effect axis. r

8.1L removable fllm container-for permanently of essentially circulariormextending'downward- 1y into the coil of fllmand extending radially past I the inner ends of said-slots; driving rollers havt t their uppensuriaceslocated in said slots;

' and above the level ot thelower end wall thereby to support the coil of am out otcontact with r V saidlower wall, the end walls being permanently spaced so that the coll of film is maintained by the rollers essentially, tree of engagement with either end wall, said upper wall having an aper-g ture betweenthe guide and the peripheralwall structure for affording accesst'o 'the film loop;

andacommon drive means for rotatlngsaid rollrotation of the coil of film about its enclosing a coiloi endless' film and consisting entlrely o1 jflxed parts comprising upper and lower 7 end walls and peripheral walls, saicl walls being fixedly connected ,togethenthe upper wall having;

an opening through which the film loop is ac-; l

cessible and also having a fixed central guide extending into the coil radially insideof the aid 1 opening, said lower wall having radiafs'lot's through which supporting rollers may P s when" the container is in operating positionwhereby to a hold the coil away'iro'mthe said lower walL-the innerendsof said slots being spaced at alesser radial distance fromfthe ofthe coil than theradial distance of said central'guide. 15C 

